WO2017025315A1 - Conduite d'air destinée au système d'admission d'un moteur à combustion interne - Google Patents

Conduite d'air destinée au système d'admission d'un moteur à combustion interne Download PDF

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Publication number
WO2017025315A1
WO2017025315A1 PCT/EP2016/067751 EP2016067751W WO2017025315A1 WO 2017025315 A1 WO2017025315 A1 WO 2017025315A1 EP 2016067751 W EP2016067751 W EP 2016067751W WO 2017025315 A1 WO2017025315 A1 WO 2017025315A1
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WO
WIPO (PCT)
Prior art keywords
air duct
polyamide
pipe
duct pipe
pipe according
Prior art date
Application number
PCT/EP2016/067751
Other languages
German (de)
English (en)
Inventor
Klaus Klockow
Christoph DONTH
Original Assignee
Etm Engineering Technologie Marketing Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=56682090&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2017025315(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Etm Engineering Technologie Marketing Gmbh filed Critical Etm Engineering Technologie Marketing Gmbh
Priority to EP16750411.7A priority Critical patent/EP3334920B1/fr
Priority to CN201680059927.XA priority patent/CN108350841B/zh
Priority to US15/751,730 priority patent/US10731610B2/en
Publication of WO2017025315A1 publication Critical patent/WO2017025315A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10314—Materials for intake systems
    • F02M35/10321—Plastics; Composites; Rubbers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
    • C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
    • C08G69/36—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino acids, polyamines and polycarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C08K7/04—Fibres or whiskers inorganic
    • C08K7/14—Glass
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
    • C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F02M35/10137—Flexible ducts, e.g. bellows or hoses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/1015—Air intakes; Induction systems characterised by the engine type
    • F02M35/10157—Supercharged engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/1034—Manufacturing and assembling intake systems
    • F02M35/10354—Joining multiple sections together
    • F02M35/1036—Joining multiple sections together by welding, bonding or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
    • F16L27/0861—Arrangements of joints with one another and with pipes or hoses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/02—Welded joints; Adhesive joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10262—Flow guides, obstructions, deflectors or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the invention relates to an air duct for the intake of an internal combustion engine.
  • Air ducts for the intake of an internal combustion engine are known. They generally serve the supply of combustion air to an internal combustion engine.
  • charge air pipes are usually referred to air duct pipes which connect a turbocharger with a charge air cooler or a charge air cooler with a throttle valve.
  • a charge air pipe is for example the subject of DE 20 2006 016 187 U1.
  • the invention is based on the technical problem of providing an air duct pipe, which in particular circumvents the disadvantages mentioned in the prior art.
  • the invention solves this problem by providing an air duct with the features of claim 1 and by the use of an air duct pipe according to claim 15.
  • Preferred embodiments of the duct pipe are defined in the dependent claims 2-14.
  • the invention relates to an air duct pipe, preferably for the intake tract of an internal combustion engine.
  • the internal combustion engine is preferably a turbo-engine, in particular a bi-turbo engine.
  • the air duct pipe has a first pipe component of a first material and a second pipe component of a second material.
  • the air duct pipe according to the present invention is preferably characterized in that the first material is more flexible, in particular softer and / or more elastic, than the second material.
  • air duct pipe should be understood to mean a pipe, in particular round pipe, which is designed to supply air, so-called combustion air, to an internal combustion engine
  • the air duct pipe according to the invention can be, for example, an air intake pipe or charge air pipe, which will be discussed in more detail below.
  • tubular component is to be understood as meaning a tubular component, in particular a tubular member.
  • a more flexible, in particular softer and / or more elastic, embodiment of the first pipe component relative to the second pipe component leads overall to an improvement, in particular extension, of the material tolerances of the air pipe according to the invention compared to other components, in particular compared to other components of a Motoransaug Thermals.
  • the first pipe component is due to its preferably more flexible properties for connection to a component, such as an air filter, predestined where some flexibility to avoid leaks is desired.
  • the second pipe component is particularly suitable because of its preferably stiffer and / or mechanically stronger properties, for example, for a connection to a component of the motor space, in particular a turbocharger, where flexibility considerations play a rather subordinate role.
  • the air duct pipe according to the invention is therefore more versatile than conventional air ducts.
  • the first material has a modulus of elasticity of 1000 MPa to 1400 MPa, in particular 1000 MPa to 1200 MPa, preferably 1000 MPa to 1 100 MPa.
  • the second material has a modulus of elasticity of 2500 MPa to 3000 MPa, in particular 2600 MPa to 3000 MPa, preferably 2700 MPa to 3000 MPa.
  • the first material is preferably an unreinforced material, i. a material that is free of reinforcing agents.
  • the first material has flexibility-enhancing, in particular softness-promoting and / or elasticity-promoting, additives.
  • the second material preferably comprises a reinforcing agent.
  • the second material is preferably a reinforced material.
  • the reinforcing agent may be selected from the group comprising fibers, particles, in particular spherical particles, powders, powders, minerals such as silicates and combinations thereof.
  • the fibers may be selected from the group consisting of inorganic fibers, metallic fibers, organic fibers, natural fibers, and combinations thereof.
  • the fibers may be selected from the group comprising basalt fibers, boron fibers, glass fibers, ceramic fibers, silica fibers, steel fibers, polyamide fibers, aramid fibers, carbon fibers / carbon fibers, nylon fibers, polyethylene fibers, Plexiglas fibers, flax fibers, hemp fibers, wood fibers, sisal fibers and combinations thereof.
  • the fibers may furthermore be long and / or short fibers.
  • the term "long fibers" is preferably intended to mean fibers having a length of> 6 mm, in particular 7 mm to 50 mm, preferably 7 mm to 20 mm, more preferably 7 mm to 15 mm, particularly preferably 8 mm to 10 mm to be understood.
  • short fibers is to be understood as meaning preferably fibers having a length of ⁇ 6 mm, in particular ⁇ 6 mm.
  • Preferred within the scope of the present invention are fibers having a length of 2 mm to 6 mm, more preferably 4 mm to 6 mm, particularly preferably 4 mm to 5 mm.
  • the above-mentioned particles may in particular be glass beads.
  • the reinforcing agent is selected from the group consisting of carbon fibers, glass fibers, glass beads, minerals such as talc and talc and combinations thereof.
  • the reinforcing agent has a proportion of from 10% by weight to 50% by weight, in particular from 15% by weight to 45% by weight, preferably from 20% by weight to 35% by weight, based on the total weight of the second material.
  • the first material comprises a thermoplastic / elastoplastic polymer.
  • the second material comprises a thermoplastic / elastoplastic polymer.
  • thermoplastic / elastoplastic polymer in the sense of the present invention means a thermoplastic or elastoplastic polymer or a so-called blend of thermoplastic or elastoplastic polymers, ie a mixture of two or more different thermoplastic or elastoplastic polymers refer to the comments made below.
  • elastoplastic polymer is intended to mean a thermoplastic elastomer or a so-called blend of thermoplastic elastomers, ie a mixture of two or more different thermoplastic elastomers, be understood.
  • suitable thermoplastic elastomers reference is also made to the statements made below.
  • the first material and the second material preferably each have a thermoplastic / elastoplastic, in particular thermoplastic, polymer.
  • the first material comprises a different thermoplastic / elastoplastic polymer than the second material.
  • the first material comprises an unreinforced thermoplastic / elastoplastic polymer, i. a thermoplastic / elastoplastic polymer which is free of reinforcing agents.
  • the second material comprises a reinforced, in particular fiber-reinforced, preferably glass-fiber reinforced, thermoplastic / elastoplastic polymer, i. a thermoplastic / elastoplastic polymer having a reinforcing agent.
  • a reinforced, in particular fiber-reinforced, preferably glass-fiber reinforced, thermoplastic / elastoplastic polymer i. a thermoplastic / elastoplastic polymer having a reinforcing agent.
  • the polymer may in principle be a homopolymer.
  • the polymer may be a copolymer, i. a polymer which has two or more different monomer units or consists of two or more different monomer units.
  • the polymer may be random, i. randomized, polymer act.
  • the polymer may be a block copolymer, i. a segmented copolymer.
  • the polymer may be selected from the group comprising polyolefins, polyethylene, polypropylene, polystyrene, polyamide and combinations, in particular blends, thereof.
  • the polymer is a polyamide, ie, a polymer, preferably a linear polymer, having regularly repeating amide bonds along the polymeric backbone. It has been found that the above-mentioned advantages of the invention with the use of polyamides for producing the first and / or second tubular component, in particular the first and second tubular component, come particularly strong advantage.
  • the polymer may in particular be a homopolyamide.
  • the homopolyamide may be an aminocarboxylic acid type or a diamine-dicarboxylic acid type.
  • the former is made of only a single monomer by z.
  • B polycondensation of a ⁇ -aminocarboxylic acid or by ring-opening polymerization of cyclic amides (lactams) produced.
  • the construction of the diamine-dicarboxylic acid type takes place by polycondensation of two complementary monomers, for example a diamine and a dicarboxylic acid.
  • the polyamide is a homopolyamide which is selected from the group comprising polycaprolactam (polycondensate from ⁇ -caprolactam, also referred to as polyamide 6), polytetramethylene adipamide (polycondensate from tetramethylenediamine and adipic acid, also referred to as polyamide 46), polyhexamethylene adipamide (polycondensate hexamethylenediamine and adipic acid; also referred to as polyamide 66), polyhexylamino azelaine amide (polycondensate of hexamethylenediamine and azelaic acid, also referred to as polyamide 69), polyhexamethylene sebacinamide (polycondensate of hexamethylenediamine and sebacic acid, also referred to as polyamide 610), polyhexamethylenedodecanamide (polycondensate of hexamethylenediamine and Dodecan
  • a particularly suitable polycaprolactam or nylon-6 is commercially available for example under the name Ultramid ® B.
  • a particularly suitable polyhexamethyleneadipamide or polyamide 66 is commercially available for example under the name Ultramid ® A.
  • polyhexamethylene sebacamide or polyamide 610 is commercially available for example under the name Ultramid ® S.
  • the polyamide is a copolyamide, ie a polyamide which is derived from a plurality, preferably at least three, different monomers.
  • the copolyamide is preferably a terpolyamide (ternary copolyamide), ie a polyamide which is derived from three different monomers.
  • the polyamide is a copolyamide which is selected from the group comprising poly (hexamethylene adipamide-co-caprolactam (polycondensate of hexamethylenediamine, adipic acid and ⁇ -caprolactam, also referred to as polyamide 6/66), polyamide 6T / 6, polyamide 6T / 66, polyamide 6T / 66 / 6I, polyamide 6T / 6I, polyamide 66/610 and combinations, especially blends, thereof.
  • poly (hexamethylene adipamide-co-caprolactam polycondensate of hexamethylenediamine, adipic acid and ⁇ -caprolactam, also referred to as polyamide 6/66
  • polyamide 6T / 6 polyamide 6T / 6T
  • polyamide 6T / 6I polyamide 6T / 6I
  • polyamide 66/610 polyamide 66/610 and combinations, especially blends, thereof.
  • polyamide 6T / 6 defines a polycondensate of hexamethylenediamine, terephthalic acid and ⁇ -Capolactam the purposes of the present invention.
  • a particularly suitable polyamide 6T / 6 is commercially available for example under the name Ultramid ® T.
  • polyamide 6T / 66 defined in the context of the present invention, a polycondensate of hexamethylenediamine, terephthalic acid and adipic acid.
  • polyamide 6T / 66 / 6I for the purposes of the present invention defines a polycondensate of hexamethylenediamine, terephthalic acid, adipic acid and isophthalic acid.
  • polyamide 6T / 6I defined in the context of the present invention, a polycondensate of hexamethylenediamine, terephthalic acid and isophthalic acid.
  • polyamide 66/610 for the purposes of the present invention defines a polycondensate of hexamethylenediamine, adipic acid and sebacic acid.
  • the polyamide in particular homo- or copolyamide, selected from the group comprising Ultramid ® A unreinforced, Ultramid ® A reinforced, Ultramid ® B unreinforced, Ultramid ® B reinforced, Ultramid ® D Aqua reinforced, Ultramid ® S balance unreinforced , Ultramid ® S Balance reinforced, Ultramid ® T unreinforced, Ultramid ® T reinforced and combinations, in particular blends thereof.
  • the first material comprises a different polyamide than the second material.
  • the first material preferably has a copolyamide, in particular a terpolamide, and the second material is a homopolyamide.
  • the first material comprises an unreinforced polyamide, in particular unreinforced copolyamide, preferably unreinforced terpolyamide, d. H. a polyamide, in particular copolyamide, preferably terpolyamide, which is free of reinforcing agents.
  • suitable polyamides in particular copolyamides, preferably terpolyamides, reference is likewise made to the previous description.
  • the first material comprises a terpolyamide, in particular unreinforced terpolyamide, which is prepared from hexamethylenediamine, adipic acid and ⁇ -caprolactam.
  • the first material preferably comprises poly (hexamethylene adipamide-co-caprolactam, ie a polycondensate of hexamethylenediamine, adipic acid and ⁇ -caprolactam (polyamide 6/66).)
  • the terpolyamide may in particular be a heat- or heat-stabilized terpolyamide ,
  • the second material comprises a reinforced polyamide, in particular reinforced homopolyamide, i. a polyamide compounded with a reinforcing agent, especially homopolyamide.
  • the second material preferably has a fiber-reinforced, preferably glass-fiber-reinforced, polyamide, in particular homopolyamide.
  • the second material preferably comprises a homopolyamide, in particular a reinforced, preferably fiber-reinforced, particularly preferably glass-fiber-reinforced, homopolyamide of the diaminodicarboxylic acid type.
  • the homopolyamide is polyhexamethylene adipamide, d. H. a polycondensate of hexamethylenediamine and adipic acid (polyamide 66).
  • polyamides described in the preceding embodiments are distinguished by increased mechanical strength, stiffness and thermal resistance compared to other materials.
  • they show an increased resistance to exogenous influences, such as martens bite.
  • they have sufficiently flexible properties, for example, to be able to make a flexible and thus better sealing connection with an engine air filter or another component of the engine intake tract.
  • first pipe component and the second pipe component can be connected to one another in a positive, force and / or material fit.
  • the first pipe component and the second pipe component are materially connected, in particular exclusively materially bonded, to one another.
  • This offers the advantage of a simpler installation of the pipe components to the air duct pipe according to the invention.
  • the use of fasteners such as hose clamps, can be dispensed with.
  • Another advantage is a material saving, in particular in the first pipe component.
  • a cohesive connection in particular for the first pipe component, a smaller wall thickness for the assembly step is required, which contributes to a further flexibilization of the first pipe component.
  • first pipe component and the second pipe component can be glued together.
  • first pipe component and the second pipe component are connected to one another by an adhesive connection.
  • first pipe component and the second pipe component are connected to one another by means of welding.
  • first pipe component and the second pipe component are connected to each other by a welded joint.
  • first pipe component and the second pipe component can be connected to one another by means of press connection welding, vibration welding and / or ultrasonic welding.
  • the first pipe component and the second pipe component are preferably connected to one another by means of press connection welding, in particular friction welding, preferably rotational friction welding.
  • the first pipe member and the second pipe member may be further manufactured by injection molding, blow molding, extrusion or combined techniques thereof. These methods are known to the person skilled in the art, so that further explanations are omitted here.
  • first pipe component and / or the second pipe component may be formed as an injection molding, blow molding or extrusion molding.
  • the first pipe component and the second pipe component are each configured as a blow molding.
  • the first pipe component is shorter than the second pipe component.
  • the first pipe component has a wall thickness of 1.8 mm to 2.2 mm, in particular 2.0 mm to 2.2 mm, preferably 2.0 mm to 2.1 mm.
  • the second pipe component has a wall thickness of 2.4 mm to 3.5 mm, in particular 2.5 mm to 3.5 mm, preferably 2.5 mm to 3.0 mm.
  • an upstream end and / or a downstream end of the air pipe in particular an upstream end of the first pipe component and / or a downstream end of the second pipe component, connected to a connector.
  • a connector In the connection may be a positive, cohesive and / or cohesive connection.
  • an upstream end and / or a downstream end of the air pipe in particular an upstream end of the first pipe component and / or a downstream end of the second pipe component, positively connected to a connector.
  • upstream end of the air duct pipe, in particular of the first pipe component is intended to mean an end of the air duct pipe, in particular of the first pipe component, on which air, in particular filtered fresh air, is generated by a compressor or turbocharger Hot or hot air or cold air generated by a charge air cooler, in the air pipe, in particular in the first pipe component, flows.
  • downstream end of the air duct pipe, in particular of the second pipe component is intended to mean one end of the air duct pipe, in particular special of the second pipe component to be understood, on which air, in particular filtered fresh air, by a compressor (compressor) or turbocharger generated hot or hot air or by a charge air cooler generated cold air from the air duct pipe, in particular from the second pipe component, flows out.
  • the fitting may be a fitting for an air cleaner, a compressor, or a turbocharger, intercooler or engine cylinder.
  • an upstream end of the air duct pipe, in particular of the first pipe component, with a connection piece for an air filter and / or a downstream end of the air duct pipe, in particular of the second pipe component, with a connection piece for a compressor (compressor) or turbocharger connected is.
  • an upstream end of the air duct pipe, in particular of the first pipe component, for connection to an air filter and / or a downstream end of the air duct pipe, in particular of the second pipe component, for connection to a compressor (compressor) or turbocharger is provided.
  • an upstream end of the air duct pipe, in particular of the first pipe component, with a connection piece for a compressor (compressor) or turbocharger and / or a downstream end of the air duct pipe, in particular of the second pipe component, with a connection piece for a charge air duct connected is provided.
  • an upstream end of the air duct pipe, in particular of the first pipe component, for connection to a compressor (compressor) or turbocharger and / or a downstream end of the air duct pipe, in particular of the second pipe component, for connection with a charge air cooler is provided.
  • an upstream end of the air duct pipe, in particular of the first pipe component is connected to a connection piece for a charge air pipe and / or a downstream end of the air duct pipe, in particular of the second pipe component, with a connection piece for an engine cylinder.
  • an upstream end of the air duct pipe, in particular of the first pipe component, for connection to a charge air cooler and / or a downstream end of the air duct pipe, in particular of the second pipe component is provided for connection to an engine cylinder.
  • the connecting piece is formed in an expedient embodiment in the circumferential direction of the air duct pipe, in particular of the first pipe component and / or second pipe component.
  • the connecting piece can be designed annular or substantially circular.
  • the connector is designed as a sleeve.
  • the connecting piece is a sealing connecting piece.
  • the fitting has an elastomeric material or is made of an elastomeric material.
  • the elastomeric material may in particular be a rubber material, preferably acrylate rubber or ethylene-acrylate rubber. Ethylene-acrylate rubber is preferable in the invention and commercially available for example under the name Vamac ®.
  • connection piece has a recess extending in the circumferential direction, preferably a groove.
  • the recess is preferably provided for receiving a fastening means, preferably a hose clamp.
  • an upstream end of the air duct pipe, in particular of the first pipe component, and / or a downstream end of the air duct pipe, in particular of the second pipe component are directly, i. without using a connector, with a fastening means, in particular a hose clamp, connected.
  • a fastening means in particular a hose clamp
  • the air pipe according to the invention is an air intake pipe.
  • air intake pipe should be understood to mean an air pipe which connects an air filter with a compressor (compressor) or turbocharger or a charge air cooler with a throttle valve in the intake tract of an internal combustion engine.
  • the air duct is a charge air duct.
  • charge air pipe should be understood to mean an air duct pipe which connects a compressor (compressor) or turbocharger with a charge air cooler in the intake tract of an internal combustion engine.
  • a second aspect of the invention relates to the use of an air duct pipe according to the first aspect of the invention for the intake tract of an internal combustion engine, in particular a turbo engine.
  • a third aspect of the invention relates to the use of an air duct as an air intake pipe, the air duct having a first pipe member of a first material and a second pipe member of a second material, wherein the first material is more flexible than the second material.
  • a fourth aspect of the invention relates to the use of an air duct pipe as a charge air duct, wherein the air duct pipe comprises a first pipe component of a first material and a second pipe component of a second material, wherein the first material is more flexible than the second material.
  • Fig. 1 an embodiment of an air duct pipe according to the invention
  • Fig. 2 a longitudinal section of a part of the air duct pipe shown in Fig. 1.
  • FIG. 1 schematically shows an air duct pipe 100 which has a first pipe component 110 and a second pipe component 120.
  • the first pipe component 1 10 and the second pipe component 120 are integrally connected to each other.
  • the first pipe component 110 and the second pipe component 120 are preferably connected to one another via a welded connection.
  • the welded connection preferably runs along the contact surfaces between the first pipe component 110 and the second pipe component 120.
  • the welded connection is preferably a friction-welded connection.
  • the first pipe component 110 is formed of a more flexible material than the second pipe component 120.
  • the material of the first tubular component 110 preferably has a copolyamide.
  • the copolyamide is preferably produced by polycondensation of hexamethylenediamine, adipic acid and ⁇ -caprolactam (polyamide 6/66).
  • the material of the second tubular component 120 preferably has a reinforced, in particular glass fiber reinforced, homopolyamide.
  • the homopolyamide is preferably polyhexamethylene adipamide, d. H. a polycondensate of hexamethylenediamine and adipic acid (polyamide 66).
  • Both the copolyamide of the first pipe component 110 and the homopolyamide of the second pipe component 120 have sufficient mechanical strength, rigidity and temperature resistance in order to withstand the pressures and temperatures which occur during operation of an internal combustion engine, in particular a turbo engine.
  • the copolyamide of the first pipe component 1 10 has sufficiently flexible properties, for example, to allow a sealing connection with an engine air filter.
  • the air duct pipe 100 in particular the first pipe component 1 10, can be connected at its upstream end 1 1 1 to a connection piece 1 15, for example for an air filter.
  • the connecting piece 1 15 can be configured as a sleeve and is preferably formed from an elastomeric material, in particular from ethylene-acrylate rubber, under density-increasing aspects.
  • FIG. 2 schematically shows a longitudinal section of a part of the air duct pipe 100 shown in FIG. 1.
  • the upstream end 1 1 1 preferably two parallel spaced and circumferential beads 1 13; 1 17, which are received when snapping form complementary protrusions of the depression.
  • a protruding, upstream-side end 121 of the second pipe component 120 is received by a groove formed on the downstream end 1 19 of the first pipe component 11, which is open in the direction of the upstream end 121.
  • a weld preferably extends in the circumferential direction of the air duct between the groove and the upstream end 121.
  • the second pipe component 120 has a condensate backflow preventer 123. This collects condensation and lets it evaporate.
  • connection piece 1 15 may have a peripheral groove 16 for receiving a fastening means, such as a hose clamp.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention concerne une conduite d'air destinée au système d'admission d'un moteur à combustion interne, de préférence d'un moteur à turbocompresseur, présentant un premier élément de conduite composé d'un premier matériau et un second élément de conduite composé d'un second matériau. Ladite conduite d'air est caractérisée en ce que le premier matériau est plus flexible que le second matériau.
PCT/EP2016/067751 2015-08-12 2016-07-26 Conduite d'air destinée au système d'admission d'un moteur à combustion interne WO2017025315A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP16750411.7A EP3334920B1 (fr) 2015-08-12 2016-07-26 Conduite d'air destinée au système d'admission d'un moteur à combustion interne
CN201680059927.XA CN108350841B (zh) 2015-08-12 2016-07-26 用于内燃机的进气道的空气管路
US15/751,730 US10731610B2 (en) 2015-08-12 2016-07-26 Air pipe for the intake tract of an internal combustion engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015215394.0 2015-08-12
DE102015215394.0A DE102015215394A1 (de) 2015-08-12 2015-08-12 Luftleitungsrohr für den Ansaugtrakt eines Verbrennungsmotors

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WO2017025315A1 true WO2017025315A1 (fr) 2017-02-16

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US (1) US10731610B2 (fr)
EP (1) EP3334920B1 (fr)
CN (1) CN108350841B (fr)
DE (1) DE102015215394A1 (fr)
WO (1) WO2017025315A1 (fr)

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US20180230950A1 (en) 2018-08-16
EP3334920A1 (fr) 2018-06-20
CN108350841A (zh) 2018-07-31
DE102015215394A1 (de) 2017-02-16
EP3334920B1 (fr) 2020-09-09
US10731610B2 (en) 2020-08-04
CN108350841B (zh) 2020-10-20

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